SH-748-2 quartz-enclosed mechanical hour meter, timer with innovative structure, size, high accuracy, reliable performance and long life, adapts to the environment - and low prices, user-friendly. It is most appropriate for Standard Industrial timing. It is widely used in engineering machinery, construction vehicles, farm machinery, generators, kilns, pumps, traffic, cranes, cars and other types of fees and the actual working hours of tracking and monitoring the performance of sophisticated equipment maintenance cycles to provide scientific basis.